| 引用本文: | 孙 正,李可军,王宇红,牛 林.HVDC直流有源滤波器容量的影响因素分析及其改进方法[J].电力自动化设备,2012,32(11): |
| SUN Zheng,LI Kejun,WANG Yuhong,NIU Lin.Analysis of affecting factors on capacity of DC active power filter for HVDC system and improvement[J].Electric Power Automation Equipment,2012,32(11): |
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| 摘要: |
| 详细阐述了高压直流（HVDC）输电直流有源电力滤波器（APF）的工作原理及典型拓扑结构，并根据三—广HVDC工程直流侧谐波电压和电流，对典型拓扑结构下直流APF的容量进行了计算分析，发现低次谐波电流是影响其容量的主要因素。通过在直流APF接入点并联LC谐振电路，使低次谐波电流（主要为3次和6次）不再流经直流APF，并通过计算证明该方法能有效地减小直流APF的容量。 |
| 关键词: HVDC输电 有源滤波器 影响因素 容量 谐波分析 |
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| 基金项目:国家自然科学基金资助项目（50977053）；山东省自然科学基金资助项目（ZR2010EM033） |
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| Analysis of affecting factors on capacity of DC active power filter for HVDC system and improvement |
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SUN Zheng1, LI Kejun1, WANG Yuhong2, NIU Lin3
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1.School of Electrical Engineering，Shandong University，Ji’nan 250061，China;2.China Electric Power Research Institute，Beijing 100192，China;3.State Grid of China Technology，Ji’nan 250002，China
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| Abstract: |
| The operational principle and typical topology of DC APF（Active Power Filter） for HVDC system are presented and its capacity is calculated and analyzed according to the harmonic voltages and currents at the DC side of a HVDC project，which shows the low-order harmonics are the main affecting factors on the capacity. A parallel LC resonant branch is placed at the connecting points of DC APF to bypass the low-order harmonic currents（mainly 3th and 6th），which can effectively reduce the capacity of DC APF. |
| Key words: HVDC power transmission active filters affecting factor capacity harmonic analysis |
